Tasmania in November 2010: wet in the Midlands, the southeast and the northwest

Several rainfall events through the month, including some heavy falls, meant that most of Tasmania had a wet November. Temperatures were above average overall, even though most days in the first three weeks were a little cool. The month was quite different to the record warm November 2009.

A summary covering all of spring 2010 is also available.

The Bureau of Meteorology’s 2010 annual climate summary for Tasmania will be published on this web site on Wednesday 5 January, as will a comprehensive summary for all of Australia.

A wet month

There were several rain events through November, ensuring that the totals for the month were at least average in all areas and well above average in the Midlands, parts of the southeast and the far northwest; a handful of sites had their wettest November for several decades. The Midlands in particular saw several days with large falls of rain, giving it totals for the month over 100mm, more than double the November average. Notable events occurred on the 7th (20 to 30 mm in the northwest), 10th (showers and local thunderstorms giving over 15 mm to the southern Midlands), 13th/14th (statewide rain, but especially in the north), 18th (local heavy falls in the west), 24th (except in the far northeast) and 27th/28th (especially in the south, with Tea Tree (The Point) and Savage River having their highest November daily rainfall on record). Some of these were associated with the passage of a cold front, but on several occasions there was extra moisture and instability over Tasmania when a trough dipped down from over the southeastern mainland.

The wettest overall was Mount Read with 322.4 mm. Mount Read also had the wettest single day of 50.8 mm to 9 am on the 18th, but not far behind were Pyengana (Forest Lodge Road) with 49.6 mm on the 14th and Savage River Mine with 47.0 mm on the 28th. The driest spot was Flinders Island Airport with 41.6 mm for the month.

A few hot days

Temperatures reached into the low 30s in the east and southeast on the 23rd, giving temperatures that had not been reached since last summer, and in some places had not been seen in November for many years, but the single hot day pales when compared to the run of hot days recorded in November 2009. Cold weather had been prevalent especially in the first few days when a cool southwesterly stream meant days in the low to mid-teens were common at many sites. A spell of milder weather peaked on the 12th  as a front approaching from the west drew warm air across Tasmania, followed by another cool week. A high over the southern Tasman Sea directed increasingly warm air over Tasmania culminating on the 23rd, which was followed by a final week that was a mix of mild and cooler days.

Averaged across the month, daytime maximum temperatures were generally a fraction above average in most areas, but a bit below in some inland areas. The highest temperature recorded was 34.8 °C at Campania on the 23rd, whilst Bushy Park and Ouse tied for the warmest days on average at 20.6 °C. At the other extreme the temperature did not rise above 3.4 °C on Mount Read on the 3rd.

Some cold nights

Several periods of lower than usual night-time temperatures also occurred, especially around the 4th and the 19th when frost was seen at some inland locations. Butlers Gorge dropped to -3.1 °C and Mount Wellington to -3.5 °C and Strahan to a November record low of 0.9 °C on the morning of the 4th in the wake of a cold front, while Cressy fell just below zero on the 19th after another front cleared the state. Mild nights were prevalent from the 8th to the 13th and again in the final week of the month, with many locations staying above 15 °C on the 24th and 25th.

Overall, overnight minimum temperatures were above average for the month, typically by half a degree but by about a degree in the northeast. This was still around 2 degrees cooler than the same time last year.

Hobart

Hobart’s 33.9 °C on the 23rd was the warmest November day there since 1988, although in most ways November 2009 (with its 4 days over 28 °C and 2 days over 31 °C) was hotter. Overall, temperatures were about half a degree above the long-term average but still a degree cooler than the same time last year.  The 92.2 mm of rainfall in the capital was well above the November average of 52.8 mm. In the past 30 years, only 2001 (with 126.8 mm) was a wetter November in Hobart, although there have been several wetter Novembers before that. The Bureau of Meteorology's Climate Data Online provides ready access to Australia's rainfall and temperature climate archives, including the entire rainfall record for Hobart.

Hobart's mean daily maximum temperature for the 11 months from January to November 2010 is a record high 18.0 °C, 1.4 °C warmer than the long-term average and 0.3 °C warmer than the previous record from 1993. Rainfall for the year so far is 490 mm,  below the long-term average for the 11 months of 559 mm. Hobart's average rainfall for a full year is 617 mm.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in November 2010
Hottest day 34.8 °C at Campania (Kincora) on the 23rd
Warmest days on average 20.6 °C at Bushy Park (Bushy Park Estates)
20.6 °C at Ouse Fire Station
Coolest days on average10.2 °C at Mount Wellington
Coldest day 3.4 °C at Mount Read on the 3rd
Coldest night -3.5 °C at Mount Wellington on the 4th
Coolest nights on average 1.9 °C at Mount Wellington
Warmest nights on average 12.1 °C at Hogan Island
Warmest night 18.4 °C at Hogan Island on the 24th
Warmest on average overall 15.6 °C at Flinders Island Airport
Coolest on average overall6.1 °C at Mount Wellington
Wettest overall 322.2 mm at Mount Read
Driest overall 41.6 mm at Flinders Island Airport
Wettest day 50.8 mm at Mount Read on the 18th
Highest wind gust 115 km/h at Maatsuyker Island Lighthouse on the 23rd

Maps

ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record highest November daily rainfall

Highest daily rainfall
in November 2010 (mm)
Previous wettest
for November
Years of
record
Savage River Mine 47.0 on the 28th 44.8 on the 20th in 1987 45
Tea Tree (The Point) 32.0 on the 28th =32.0 on the 15th in 1988 25



Record highest total November rainfall

Total rainfall
for November 2010 (mm)
Previous wettest
for November
Years of
record
Average for
November
Tea Tree (The Point) 125.0 116.2 in 2001 24 46.8

Highest total November rainfall for at least 20 years

Total rainfall
for November 2010 (mm)
Most recent November
at least this wet
Years since
wetter
Average for
November
Rotherwood 107.6 117.0 in 1976 34 57.7
Marrawah 136.0 162.2 in 1977 33 68.1
York Plains (Handroyd) 102.2 103.4 in 1976 33 51.4
Irishtown 108.2 142.0 in 1977 27 82.0



Record lowest November temperature

Lowest temperature
in November 2010 (°C)
Previous coolest
for November
Years of
record
Average for
November
Dover 0.9 on the 6th 1.4 on the 5th in 2006 21 7.8
Strahan Aerodrome 0.9 on the 4th 1.0 on the 5th in 2008 20 8.2




Summary statistics for November 2010

Maximum temperatures
for November
(°C)
Minimum temperatures
for November
(°C)
Rainfall
for November
(millimetres)
Mean for
November
2010
Diff
from
average
Highest for
November
2010
Mean for
November
2010
Diff
from
average
Lowest for
November
2010
Total for
November
2010
Average
for
November
Rank of
November
2010
Fraction of
November
average
Northern (district 91)
Bridport (Sea View Villas) 18.2 -0.1 24.9 23rd 10.4 +0.5 5.2 4th 67.8 51.0 high 133%
Burnie (Round Hill) 18.0 +0.3 22.0 23rd 10.6 +0.9 4.4 3rd 96.5 68.4 high 141%
Cape Grim BAPS 16.0 +0.1 23.4 23rd 10.7 +0.1 7.3 4th 109.0 51.4 v high 212%
Cressy Research Station 19.3 -1.3 27.7 23rd 8.5 +1.5 -0.1 19th 90.2 52.3 high 172%
Devonport Airport 17.9 +0.2 22.6 24th 10.0 +1.0 2.5 3rd 60.2 56.7 average 106%
Launceston (Ti Tree Bend) 20.5 +0.1 27.8 12th 10.1 +1.2 3.5 19th 49.0 49.2 average 100%
Launceston Airport 19.5   27.4 23rd 8.4   1.6 19th 64.4


Low Head 17.1 -0.3 21.7 28th 11.4 +0.2 6.4 19th 58.8 44.4 average 132%
Luncheon Hill (Forestry) 16.9 -0.5 28.3 23rd 7.8 +0.2 2.5 3rd 171.4 92.5 v high 185%
Marrawah 16.6 0.0 27.2 23rd 9.8 +0.6 5.0 4th 136.0 69.8 v high 195%
Scottsdale (West Minstone Road) 18.6 -0.2 26.6 23rd 8.5 +0.8 1.6 4th 77.8 69.6 average 112%
Sheffield School Farm 17.3 -0.7 24.6 23rd 8.0 +0.5 2.2 19th 117.4 89.2 average 132%
Smithton Aerodrome 17.6 -0.8 23.6 23rd 9.0 +0.3 2.0 20th 85.4 54.8 high 156%
Wynyard Airport 18.4 +0.6 22.2 20th 8.7 +0.7 1.4 3rd 96.6 74.9 high 129%
East Coast (district 92)
Bicheno (Council Depot) 18.4 0.0 32.5 23rd 10.3 +0.2 4.0 19th 86.4 58.4 high 148%
Eddystone Point 19.5 +1.7 28.9 23rd 11.3 +0.5 6.7 19th 69.8 59.6 average 117%
Fingal (Legge Street) 19.1 -0.4 30.3 12th 7.9 +0.8 1.2 4th 54.8 44.7 average 123%
Friendly Beaches 19.3 -0.3 33.9 23rd 10.2 0.0 4.3 4th 98.8 60.8 high 163%
Lake Leake (Elizabeth River) 15.2 -0.5 26.6 12th 6.5 +1.2 -1.1 4th 83.4 63.8 high 131%
Maria Island (Point Lesueur) 17.6   28.0 23rd 10.6   6.8 3rd 73.2


Orford (Aubin Court) 18.4 -0.2 31.9 23rd 9.5 +0.4 3.5 3rd 85.2 65.3 high 130%
Scamander 19.3 +0.4 31.8 23rd 10.6 +0.3 5.0 19th 76.4 70.1 average 109%
St Helens Aerodrome 19.1   30.1 23rd 10.4   5.0 4th 79.2 70.7 average 112%
Swan Island 17.5   25.7 23rd 12.0   8.4 3rd 49.0 61.6 average 80%
Swansea Post Office 18.8 -0.3 33.3 23rd 9.0 0.0 1.6 19th 81.4 51.8 high 157%
Midlands (district 93)
Ross (The Boulevards) 19.3 -0.6 29.6 23rd 8.2 +1.4 -0.1 4th 99.0 48.6 high 204%
Southeast (district 94)
Bull Bay (Lauriston) 17.9 +0.1 33.0 23rd 9.3 +0.1 4.5 3rd 82.9 52.4 high 158%
Campania (Kincora) 20.0 -0.8 34.8 23rd 8.0 -0.6 1.4 6th 98.8 41.7 v high 237%
Cape Bruny (Cape Bruny) 17.2 +0.5 31.9 23rd 9.3 -0.3 5.4 3rd 104.8 53.7 v high 195%
Cape Bruny Lighthouse 16.3 +0.8 31.3 23rd 9.6 +0.6 5.4 3rd 116.8 75.5 v high 155%
Dover 17.5 0.0 32.2 23rd 7.8 0.0 0.9 6th 103.0 71.9 high 143%
Geeveston (Cemetery Road) 18.4 +0.2 31.4 23rd 7.8 +0.2 0.4 6th 95.4 70.1 high 136%
Grove (Research Station) 18.7   31.1 23rd 7.3   -0.2 6th 112.2


Hobart (Ellerslie Road) 19.0 +0.3 33.9 23rd 9.7 +0.4 3.7 4th 92.2 54.3 v high 170%
Hobart Airport 19.1 +0.1 33.3 23rd 9.4 +0.2 3.9 4th 79.0 44.2 high 179%
Maatsuyker Island Lighthouse 14.3 -0.1 26.5 23rd 8.6 +0.2 5.4 3rd 104.6 92.0 average 114%
Melton Mowbray (North Stockman) 19.1 -0.7 32.6 23rd 7.9 +0.6 0.6 4th 99.0 41.6 v high 238%
Mount Wellington 10.2 +1.0 23.3 23rd 1.9 +0.4 -3.5 4th 169.4 88.9 high 191%
Tasman Island 15.5   31.7 23rd 8.6   4.2 3rd 68.2


Tunnack Fire Station 16.9 -0.4 27.4 23rd 6.4 +0.4 -1.9 4th 121.6 60.2 v high 202%
Derwent Valley (district 95)
Bushy Park (Bushy Park Estates) 20.6 +0.8 32.9 23rd 7.4 -0.1 -0.5 4th 72.8 52.9 high 138%
Maydena Post Office 18.0 0.0 29.2 23rd 6.8 +0.4 -1.5 4th 107.2 92.4 high 116%
Ouse Fire Station 20.6 -0.5 33.2 23rd 7.0 0.0 0.9 7th 44.8 40.7 average 110%
Tarraleah Village 16.9 +0.6 27.5 23rd     -1.5 4th 92.3 97.2 average 95%
Central Plateau (district 96)
Butlers Gorge 15.8 +1.3 26.8 23rd 4.6 +0.7 -3.1 4th 119.0 139.5 average 85%
Lake St Clair National Park 16.5 +1.0 27.2 23rd 4.2 +0.7 -2.9 4th 128.0 134.0 average 96%
Liawenee 14.9   24.2 23rd 3.2   -2.6 3rd 109.2 68.1 high 160%
West Coast (district 97)
Hartz Mountain (Keoghs Pimple) 13.7 -0.1 25.5 23rd 4.0 -0.3 -0.7 3rd 117.8 73.3 v high 161%
Mount Read 10.5 -0.4 20.8 23rd 2.8 -0.4 -1.8 4th 322.4 201.4 v high 160%
Scotts Peak Dam 17.5 -0.2 28.3 22nd 6.9 +0.1 2.3 3rd 133.0 91.9 high 145%
Strahan Aerodrome 17.8 +0.1 29.7 23rd 8.4 +0.2 0.9 4th 141.0 84.9 high 166%
Strathgordon Village 15.8 -0.4 28.2 23rd 7.3 +0.2 1.1 4th 164.2 177.2 average 93%
Warra 16.0   28.8 23rd 5.7   -0.6 4th 161.6


King Island (district 98)
King Island Airport 17.6 +0.3 29.3 23rd 10.0 0.0 4.6 20th 68.4 56.0 high 122%
Flinders Island (district 99)
Flinders Island Airport 19.9 +1.4 31.7 23rd 11.2 +1.0 2.9 20th 41.6 55.0 average 76%
Hogan Island 18.6   30.2 23rd 12.1   8.6 4th 68.6


Antarctica and Macquarie Island (district 300)
Macquarie Island 7.2 +0.7 8.9 27th 4.0 +1.3 1.3 22nd 108.6 71.8 v high 151%


Notes

A Monthly Climate Summary is prepared to list the main features of the weather in Tasmania using the most timely and accurate information available on the date of publication; it will generally not be updated. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review, usually published in the fourth week of the month.

This statement has been prepared based on information available at 10 am on Wednesday 1 December 2010. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages are long-term means based on observations from the years 1895 to 2100. They are not shown for sites with less than 10 years of record in that time, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall is in decile 1, low in decile 2 or 3, average in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.

Further information

Media
(03) 9669 4057
Enquiries